Aerating base



FIG. 1 is a top plan view of an aerating base in accordance with my invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a perspective view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

The structure indicated in the drawing figures by broken lines is not part of the design sought to be patented in this application. 

The ornamental design for an aerating base, as shown. 